Condition Based Maintenance And Fault Diagnosis Of A Booster Pump Unit

摘要

Condition based maintenance of rotating equipment plays an important role to enhance the machinery availability, reduce downtime and avoid catastrophic failures. With the advent of user-friendly vibration monitoring instruments available at affordable prices, more and more industries across the globe are adopting to this scientific route to diagnose vibration problems and implement remedial measures in a reasonably short period of time. The present work highlights an experimental investigation to monitor the vibration condition of Booster Pump unit, which is a part of Boiler Feed Pump train of a large utility Thermal Power Plant. The Booster Pump is driven by a 3500KW, 1440RPM Motor. Motor along with Booster Pump is supported by 4 Bearings. Tri-axial measurements are made at the bearing supports for 12 months. Displacement and Velocity are measured along Horizontal, Vertical and Axial directions. The experimental data is plotted on Time domain for graphical analysis to ease viewing of vibration signals. Based on the experimental data, faults are diagnosed using ISO 2372 standards and causes are predicted. It is observed that the front and rear bearings of Booster Pump are experiencing excess vibration. The work is concluded by suggesting remedial measures to ensure vibration intensity at the said points within the safe limits.